An accessible NVDA add-on that turns mathematical functions and equations into audio — so you can hear the shape of a graph instead of seeing it.
The concept and direction behind this add-on are my own. Development was assisted by AI.
Type or paste any math expression — like sin(x), x^2 - 4, or 1/x — and press NVDA + Alt + S to instantly hear it as an audio graph. Pitch follows the y-axis; stereo position follows the x-axis, sweeping left to right as the curve plays. Notable points like roots, peaks, and the y-intercept are highlighted with distinct sounds.
You can also open the interactive explorer with NVDA + Alt + M to step through the graph point by point using your arrow keys.
- Standard expressions:
sin(x),x^2 - 4,1/x,exp(-x) * cos(x) - LaTeX:
\frac{1}{x},\sqrt{x^2 + 1},\sin(2\pi x) - Data sequences:
1, 4, 9, 16, 25or coordinate pairs(0, 1), (2, 4), (5, 9)
| Shortcut | Action |
|---|---|
NVDA + Alt + S |
Sonify selected or copied expression |
NVDA + Alt + M |
Open interactive explorer |
NVDA + Alt + Esc |
Stop audio |
Inside the Explorer:
| Key | Action |
|---|---|
Left / Right |
Step through the graph |
Home / End |
Jump to start or end of domain |
Z |
Jump to next root |
M |
Jump to next peak or valley |
O |
Jump to the y-axis |
Alt + P |
Play the full graph |
Alt + X |
Export as WAV file |
Go to NVDA Menu → Preferences → Settings → Math Sonifier to adjust playback duration, pitch range, sound timbre, and which audio cues are enabled.
- NVDA 2022.1 or later
- Windows (32-bit or 64-bit)
- No extra software needed